Sig Sauer P556 Pistol – 5.56 NATO, SB Tactical Brace, Quad Rail, Classic Design

The Sig Sauer P556 is a compact, gas-piston-driven pistol chambered in 5.56 NATO, designed for shooters who demand precision and reliability in a small, rugged platform. Built in Exeter, New Hampshire, this firearm combines the legendary performance of the SIG 550 series with modern tactical enhancements for U.S. shooters.

This model features a quad-rail handguard, SB Tactical adjustable brace, and A2-style flash hider, offering flexibility for accessories and optics. The short-stroke gas piston system ensures cleaner operation and exceptional durability, even under hard use. Its compact design and proven reliability make it an excellent choice for home defense, range training, or collectors seeking one of Sig’s most iconic imports.

Compact, powerful, and built like a tank — the P556 is a prime example of Sig Sauer engineering and quality craftsmanship.

Specifications